We do not recommend the parallel modules (such as the one you are interested in) for end-user PC applications. These modules require more extensive wiring knowledge and the proper tools. These modules are primarily intended for OEM (manufacturer) use.
We do not offer end-user tech support on the CFAH* series LCDs in PC applications. We will not accept returns on CFAH* LCDs damaged in an attempt to connect them to a PC.
That said, if you merely have the power and contrast hooked up correctly, you will get the top row (or alternating rows) of full-on characters. You need not even have any of the data lines hooked up to get that supposed "test screen" on the display.
I would check each individual data line with our CFAH_Wintest software, which you can download from here:
http://www.crystalfontz.com/softwar...Test/index.html
If only one data line is not connected properly, the entire display will do nothing of consequence and will not update when you send data to it.
